Technical Service Bulletin B640915 — 2015 BMW 428I
EQUIPMENT:APPLIANCE:AIR CONDITIONER
Bulletin Details
| TSB ID | B640915 |
| Manufacturer | |
| Vehicle | 2015 BMW 428I |
| Component | EQUIPMENT:APPLIANCE:AIR CONDITIONER |
| Communication Date |
Bulletin Summary
Whistling Noise Coming from the Center Vent - A/C is Off . A very high pitched whistling or beeping noise is heard coming from the center vents. The flow of refrigerant through the expansion valve at certain temperature differentials.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.